Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ANSI X3.55:1992
• Năm ban hành / Publication date: 1992
• Tình trạng / Status: W - Hết hiệu lực
• Tên tiếng Anh / Title in English: Information Systems - Unrecorded Magnetic Tape Cartridge for Information Interchange - 0 - 250 Inch (6 - 30 mm), 1600 bpi (63 bpmm), Phase Encoded
• Thay thế cho / Replace: ANSI X3.55:1982
• Số trang / Page: 26

Phạm vi áp dụng / Scope of standard

This standard, for an unrecorded cartridge containing 0.250 in (6.30
mm) magnetic tape, presents the minimum requirements for the mechanical
and magnetic interchangeability of the cartridge between information
processing systems, communication systems, and associated equipment
utilizing a standard code for information interchange, as agreed upon by
interchange parties. This standard refers solely to the magnetic tape
and cartridge with various lengths of tape for digital recording, and
complements American National Standard Recorded Magnetic Tape Cartridge
for Information Interchange, 4 Track, 0.250 in (6.30 mm), 1600 bpi
(63 bpmm), Phase Encoded, ANSI X3.56-1977.

The magnetic tape cartridge consists of two coplanar hubs loaded with
0.250 in (6.30 mm) wide magnetic tape (see figure 1). The tape is
transported between hubs by an internal belt which is coupled by an
internal belt capstan to the external drive. No tape-driving or
position-sensing elements penetrate the cartridge.

This standard applies to cartridges used for data interchange. Where it
applies to cartridge testing only, it is specifically stated.

CAUTION NOTICE - The user's attention is called to the possibility that
compliance with this standard may require use of an invention covered by
patent rights. By publication of this standard, no position is taken
with respect to the validity of this claim or of any patent rights in
connection therewith. The patent holder has, however, filed a statement
of willingness to grant a license under these rights on reasonable and
nondiscriminatory terms and conditions, to applicants desiring to obtain
such a license. Details may be obtained from the publisher. No
representation or warranty is made or implied that this is the only
license that may be required to avoid infringement in the use of this
standard.